Holding period

The holding period is the length of time between when you acquire an investment and when you sell it. This simple measure has enormous tax consequences: assets held longer than one year receive preferential long-term tax treatment; those held under a year are taxed at ordinary rates. The distinction can reduce your tax bill by hundreds of thousands of dollars over a lifetime.

The one-year rule

The US tax code draws a sharp line at one year. Buy a stock on January 15, 2024, and sell it on January 14, 2025—a holding period of 364 days—and the gain is short-term. Sell one day later, on January 15, 2025, and it is long-term.

This threshold applies to capital gains on all assets: stocks, bonds, mutual funds, real estate, and most other property. It is measured from the date of acquisition to the date of sale. For purchases, this is typically the settlement date (usually three business days after purchase in US markets), not the trade date.

The tax difference

Short-term capital gains are taxed at ordinary income tax rates, which climb to 37% at the top bracket. Long-term capital gains are taxed at preferential rates: 0%, 15%, or 20%. The effective difference can exceed 37%: an investor in the 37% bracket pays 37% on short-term gains but only 20% on long-term gains.

This incentivizes patience. Waiting one year and one day can be worth thousands or tens of thousands of dollars in taxes on a large portfolio.

Holding period for dividends

For qualified dividends, a separate holding period requirement applies: you must hold a stock for at least 60 days in the 120-day window surrounding the ex-dividend date to receive preferential treatment. This is a distinct rule from the one-year capital gains holding period.

Start date: acquisition, not purchase order

The holding period begins on the date of acquisition—for most investors, the settlement date of the purchase. In the US, stock trades settle three business days after the trade date, so if you place an order on a Monday, it settles on Thursday, and your holding period starts Thursday. Selling anytime from Thursday of the following week onwards counts as long-term (for trades settling three days later).

Options and other derivatives have different rules; consult a tax professional if you use options.

Impact on portfolio management

The one-year rule creates powerful incentives and biases. An investor with a stock that is near its one-year anniversary may hesitate to sell, even if the position is overweighting the portfolio or the company’s fundamentals have deteriorated, because waiting one more day saves significant taxes. Awareness of this lock-in effect is the first step to managing it rationally: sometimes rebalancing or risk reduction is worth paying short-term taxes.

Interaction with cost basis

The holding period determines the tax rate on your capital gain. The cost basis method determines the amount of the gain. You can minimize both by choosing a tax-efficient cost basis method—specific identification, FIFO, LIFO, or average cost—and timing your sales to achieve long-term treatment.

Wash-sale and holding period

The wash-sale rule restricts repurchase within 30 days of a sale, and this can reset the holding period. If you sell at a loss to harvest the loss and immediately repurchase, your new holding period starts from the new purchase date. Plan loss harvesting carefully to avoid extending the time before you can achieve long-term treatment again.

See also